Power-assisted steering system or power steering system
a technology of steering system and assisted steering, which is applied in the direction of power driven steering, steering parts, portability lifting, etc., can solve the problems of unoptimized wheel and composite gear wheel assembly sequence, and achieve the effect of simplifying the assembly of the gear wheel
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[0018]Illustrated in the Figures is a composite gear wheel, as is used in a worm gear mechanism for power-assisted steering systems or power-steering systems, where the gear wheel is used as a worm wheel that engages with a worm or worm gear, in order to provide steering assistance or to produce the entire required steering force.
[0019]FIG. 1 is a longitudinal cross-sectional view of a composite gear wheel 1 taken along line II-II illustrated in FIG. 2. Composite gear wheel 1 includes: a cylindrical hub 3, on whose one axial end 14 a first disk 2 having a crimped cross-section is formed in one piece; of an annular ring gear 4; and a second disk 12. Ring gear 4 is made of a thermoplastic synthetic material. First and second disks 2, 12 terminate ring gear 4 in the axial direction and are pressed against it with the aid of six rivets 15, which pass through disks 2, 12 and ring gear 4. Hub 3 and first and second disks 2, 12 are made of metal.
[0020]On their outer circumferential edges, ...
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